DESIGN AND IMPLEMENTATION OF WHEEL PRESSURE MONITORING SYSTEM. Bharath Institute of Higher Education and Research, Chennai,

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1 Volume 116 No , ISSN: (printed version); ISSN: (on-line version) url: ijpam.eu DESIGN AND IMPLEMENTATION OF WHEEL PRESSURE MONITORING SYSTEM 1 V.G.Vijaya, 2 Hameed Hussain J, 3 Dhanasekar J 1,3 Assistant Professor, 2 Dean Engineering, 1&3 Department of Mechatronics Engineering, BIST, Bharath Institute of Higher Education and Research, Chennai, 1 dr.j.hussain@gmail.com Abstract: Maintenance of tire pressure in vehicles is of major importance because of the fact reduction in the pressure of the vehicles results in reduced fuel efficiency and long term wear in tires which results in the replacement of tires very often. In this paper the used concept relies upon eliminating the above presented facts by monitoring the tire pressure continuously using the pressure sensor and wireless zigbee module and micro-controller. A separate mouth is protruded apart from the normal mouth in which the pressure sensor is placed which transmits the signal through zigbee module and received by the zigbee module present outside and the signal is been sent to micro-controller which monitors and displays the status of pressure on a LCD screen which alerts the user to fill the air-pressure in the tire there by,the user of the vehicle can eliminate the wheel misalignment and provide safety to the vehicle. Keywords: Pressure sensor, Zigbeemodule, Microcontroller 1. Introduction In recent days,use of electronics plays a major role in Automobile to enhance the safety and comfort of using it.autotronics is the new field been developed to state the specific use of electronics in different domains of automobile. Tire Pressure Monitoring Systems (TPMS) are a new standard for improved vehicle safety. These systems are an important and growing safety feature in newer vehicles. The proposed system utilizes advanced integration techniques to provide a TPMS solution that provides real-time tire pressure monitoring and alerts the driver to improperly inflated tires[1-4].the project aims at developing a TPMS (Tire Pressure Monitoring System), which displays the tire pressure onto a LCD wirelessly. The proposed system provides the facility of dynamically changing the tire pressure limit setting. Also, the system alerts the driver by horning alarm if the tire pressure is high or low[5-10]. The controlling device system of the whole systems is a Microcontroller. The project can be divided into two sub systems; one present in the tire which helps in sending current tire pressure through Zigbee based wireless communication. The other system is present in the car, which receives the current pressure and continuously monitors it. Also, it displays the pressure onto a LCD display. This system is capable of alerting in case of improper inflated tires. The provision of dynamic pressure setting is available in the car system. Microcontroller is loaded with an intelligent program written in embedded C language to perform the task[11-15]. 2. Layout of TPMS Figure 1. Layout of Tire Pressure Monitoring system transmitter 69

2 Figure 2. Layout of tire pressure monitoring system receiver produces a potential (static voltage) across its plates. In its basic form a capacitor consists of two parallel conductive plates that are not connected but are electrically separated either by air or by an insulating material called the Dielectric. When a voltage is applied to these plates[16-20], a current flows charging up the plates with electrons giving one plate a positive charge and the other plate an equal and opposite negative charge this flow of electrons to the plates is known as the Charging Current and continues to flow until the voltage across the plates (and hence the capacitor) is equal to the applied voltage Vcc. At this point the capacitor is said to be fully charged and this is illustrated below. The construction of capacitor and an electrolytic capacitor are shown in figures 3.7 and 3.8 respectively. 3. Components of description A. MICRO-CONTROLLER PIC 16F73 PIN DESCRIPTION Figure 5. Construction of Capacitor D. LCD Display Figure 3. Pin Diagram of PIC micro-controller B.Regulated power Supply Block Diagram Figure 4. Block Diagram of Regulated Power Supply. C.Capacitors The Capacitor or sometimes referred to as a Condenser is a passive device, and one which stores energy in the form of an electrostatic field which Figure 6. LCD pin diagram One of the most common devices attached to a micro controller is an LCD display. Some of the most common LCD s connected to the many microcontrollers are 16x2 and 20x2 displays. This means 16 characters per line by 2 lines and 20 characters per line by 2 lines, respectively[21-25]. E. ZIG BEE module Both transmitting and receiving section has an individual zigbee module. It is connected with the microcontroller in 70

3 two pins TX and RX. Tarang f4 module is used in this project and this works about 35 meter distance. More about zigbee technology is explained in next chapter. Fig: 3.11 shows Tarang f4 zigbeemodule[26-28]. A. Circuit Diagram of transmitter Section Figure 7. Tarang F4 Zig-bee Module F. Pressure Sensor A pressure sensor measures pressure, typically of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area. A pressure sensor usually acts as a transducer; it generates a signal as a function of the pressure imposed. For the purposes of this article, such a signal is electrical[19]. The above schematic diagrams of Implementation of tire Pressure Monitoring System with wireless communication explain the interfacing section of each component with micro controller and Zigbee module. The pressure sensor detects the difference in air pressure in the tire and sends the electrical signal through the zigbee module to the microcontroller that is been interfaced. The signal received by the microcontroller will be compared with the threshold limit and the buzzer will be on to indicate the reduction in air pressure in the tire. To avoid the wired connections the zigbee module interacts with the microcontroller to take necessary corrective action[29-30]. Figure 8. Pressure Sensor 4. Project Description 71

4 B. Circuit diagram of receiver section 5. Conclusion This project enables the rider to constantly monitor the tire pressure which resulst in reduced fuel efficiency and seldom accidents, due to low pressure tires. Hence our concept is directlu addressing the factor of increasing fuel efficiency and ensured maintenance. This process can be implemented almost in all vehicles present because of the fact monitoring pressure is of major importance Integrating features of all the hardware components used have been developed in it. Presence of every module has been reasoned out and placed carefully, thus contributing to the best working of the unit. Secondly, using highly advanced IC s with the help of growing technology, the project has been successfully implemented. Thus the project has been successfully designed and tested. References [1] Arun Kumar N., Srinivasan V., Krishna Kumar P., Analysing the strength of unidirectional fibre orientations under transverse static load, International Journal of Applied Engineering Research, v-9, i-22, pp , [2] Srinivasan V., Analysis of static and dynamic load on hydrostatic bearing with variable viscosity and pressure, Indian Journal of Science and Technology, v- 6, i-suppl.6, pp , [3] Srinivasan V., Optimizing air traffic conflict and congestion using genetic algorithm, Middle - East Journal of Scientific Research, v-20, i-4, pp , [4] Praveen R., Achudhan M., Optimization of jute composite as a noise retardant material, International Journal of Applied Engineering Research, v-9, i-22, pp , [5] Raja Kumar G., Achudhan M., Srinivasa Rao G., Studies on corrosion behaviour of borated stainless steel (304B) welds, International Journal of Applied Engineering Research, v-9, i-22, pp , [6] Ganeshram V., Achudhan M., Design and moldflow analysis of piston cooling nozzle in automobiles, Indian Journal of Science and Technology, v-6, i- SUPPL.6, pp , [7] Ganeshram V., Achudhan M., Synthesis and characterization of phenol formaldehyde resin as a binder used for coated abrasives, Indian Journal of Science and Technology, v-6, i-suppl.6, pp , [8] Achudhan M., PremJayakumar M., Mathematical modeling and control of an electrically-heated catalyst, International Journal of Applied Engineering Research, v- 9, i-23, pp , [9] Anbazhagan R., Satheesh B., Gopalakrishnan K., Mathematical modeling and simulation of modern cars in the role of stability analysis, Indian Journal of Science and Technology, v-6, i-suppl5, pp , [10] Udayakumar R., Kaliyamurthie K.P., Khanaa, Thooyamani K.P., Data mining a boon: Predictive system for university topper women in academia, World Applied Sciences Journal, v-29, i-14, pp-86-90, [11] Kaliyamurthie K.P., Parameswari D., Udayakumar R., QOS aware privacy preserving location monitoring in wireless sensor network, Indian Journal of Science and Technology, v-6, i-suppl5, pp , [12] Kumar J., Sathish Kumar K., Dayakar P., Effect of microsilica on high strength concrete, International Journal of Applied Engineering Research, v-9, i-22, pp , [13] Dayakar P., Vijay Ruthrapathi G., Prakesh J., Management of bio-medical waste, International Journal of Applied Engineering Research, v-9, i-22, pp , [14] Iyappan L., Dayakar P., Identification of landslide prone zone for coonoortalukusingspatialtechnology, International Journal of Applied Engineering Research, v- 9, i-22, pp , [15] Swaminathan N., Dayakar P., Resource optimization in construction project, International Journal of Applied Engineering Research, v-9, i-22, pp , [16] Swaminathan N., Sachithanandam P., Risk assessment in construction project, International Journal of 72

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